1Matrix is an implementation of Matrix and Vector classes. 2 3The Matrix class represents a mathematical matrix. It provides methods for 4creating matrices, operating on them arithmetically and algebraically, and 5determining their mathematical properties (trace, rank, inverse, determinant, 6eigensystem, etc.). 7 8The Vector class represents a mathematical vector, which is useful in its own 9right, and also constitutes a row or column of a Matrix. 10